TY  - CONF
T1  - Development and evaluation of temperature sensors for textile integration
A1  - Kinkeldei, Thomas
A1  - Zysset, Christoph
A1  - Cherenack, Kunigunde
A1  - Tröster, Gerhard
TI  - Proceedings of the IEEE Sensors Conference 2009
Y1  - 2009
SP  - 1580
EP  - 1583
PB  - IEEE
CY  - Christchurch New Zealand
M2  - doi: 978-1-4244-5335-1/09
KW  - Smart Textiles
KW  - Wearable Computing
N2  - In this paper we report an approach to fully integrate micro fabricated sensors into textiles.We first developed platinum resistance temperature sensors  RTDs) on 500 um wide, 67.5 mm-long plastic stripes. After completing the sensor fabrication, we used a dicing saw to separate individual sensors by cutting the plastic foil into stripes, each containing an individual sensor and connecting lines. The resistance of the RTDs was 665 Ohm  /- 10 Ohms at room temperature. The temperature coefficient of the RTDs is 0.00223 1/K with a the sensitivity of 1.52 Ohm/°C at a drive current of 500 uA. Cutting the substrate did not affect the sensor functionality. We then tested the influence of strain on the stripe RTDs signal using a pulling tester to apply tensile strain. Longitudinal strain resulted in metal line break after 2 N applied force (at an elongation of 5 %) and in breaking of the Kapton stripe at 8 N applied force. Single sensor stripes spaced 10 mm apart were integrated into a textile band using a commercial band weaving machine.
ER  -